GEN 2 TABLES AND CODES

GEN 2.1 MEASURING SYSTEM, AIRCRAFT MARKINGS, HOLIDAYS

2.1.1 Units Of Measurement

2.1.1.1 The table of units of measurement shown below will be used by aeronautical stations within Kuala Lumpur and Kota Kinabalu FIRs for air and ground operations.

For Measurement of

Units used

Distance used in navigation, position reporting, etc. - generally in excess of 2 to 3 nautical miles

Nautical Miles and Tenths

Relatively short distances such as those relating to aerodromes (e.g. runway lengths)

Metres

Altitudes, elevations and heights

Feet

Horizontal speed including wind speed

Knots

Vertical speed

Feet per minute

Wind direction for landing and taking-off

Degrees Magnetic

Wind direction except for landing and taking-off

Degrees True

Visibility including runway visual range

Kilometres or Metres

Altimeter setting

Hectopascal

Temperature

Degrees Celsius (Centigrade)

Weight

Metric tonnes or Kilograms

Time

Hours and Minutes, the day of 24 hours beginning at midnight UTC

2.1.1.2 The prefixes and symbols listed in table shown below shall be used to form names and symbols of the decimal multiples and sub-multiples of SI units

Table: SI unit prefixes

Multiplication Factor

Prefix

Symbol

1000 000 000 000 000 000 = 1018

exa

E

1 000 000 000 000 000 = 10 15

peta

P

1 000 000 000 000 = 10 12

tera

T

1 000 000 000 = 10 9

giga

G

1 000 000 = 10 6

mega

M

1 000 =10 3

kilo

k

100 = 10 2

hecto

h

10 = 10 1

deca

da

0.1 = 10-1

deci

d

0.01 = 10 -2

centi

c

0.001 = 10 -3

milli

m

0.000 001 = 10-6

micro

μ

0.000 000 001 = 10 -9

nano

n

0.000 000 000 001 = 10 -12

pico

p

0.000 000 000 000 001 = 10 -15

femto

f

0.000 000 000 000 000 001 = 10 -18

atto

a

2.1.2 Time System

2.1.2.1 Coordinated Universal Time (UTC) is used in air traffic and communications services and in documents published by Aeronautical Information Service. Local time is 8 hours ahead of UTC in Malaysia.

2.1.2.2 In reporting time, the nearest full minute is used. Time checks to aircraft are accurate to within 30 seconds.

2.1.3 Geodetic Reference Datum

2.1.3.1 The published geographical coordinates in the Kuala Lumpur Fir and Kota Kinabalu Fir indicating latitude and longitude are expressed in terms of the World Geodetic System - 1984 (WGS-84) geodetic reference datum.

2.1.4 Aircraft Nationality And Registration Marks

2.1.4.1 The nationality mark for aircraft registered in Malaysia is the figure 9 followed by the letter M. The nationality mark is followed by a hyphen and a registration mark consisting of three letters.

Example: 9M-MAS.

2.1.5 Public Holidays

2.1.5.1 The following is a list of national public holidays in Malaysia for 2017 and 2018.